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AFA Oil

The controller is a self-acting pressure relief controller primarily for use in district heating systems. The controller is normally closed and opens on rising pressure. The controller has a control valve, an actuator with one control diaphragm and a spring(s) for pressure setting. Further on two valve versions are available: – VFG 2 with metallic sealing cone – VFG 21 with soft sealing cone

AFD Oil

The controller is a self-acting pressure reduction controller primarily for use in district heating systems. The controller is normally open and closes on rising pressure. The controller has a control valve, an actuator with one control diaphragm and a spring for pressure setting.

V73 D52

V74 D52

VFG 2

Valves for heating, district heating and cooling systems. The valves can be used with following actuators: Thermostats (TR) AFT...; Safety Temperature Monitor (STM) STFW and Actuators AMV(E) 655, 658 , 659.